Card connector

Abstract

A card connector includes a housing inserted a card therein, a slider, a rotating cam member having a shaft portion that is retained so as to be rotatable by the slider, and a compression coil spring that biases the rotating cam member. The slider includes second chevron teeth that engage with first chevron teeth provided at an end of the rotating cam member. The rotating cam member is provided with a first broad protrusion and a second narrow protrusion alternately at an outer circumference of the shaft portion. When inserting the card, since the rotating cam member turns by a predetermined angle so that the first protrusion faces the starting end of the passage groove, the slider is locked. When pushing the card again, since the rotating cam member turns by a predetermined angle, the second protrusion faces the starting end of the passage groove, the card can be ejected.

1. A card connector comprising:
 a housing of a flat plate shape that is provided with a concave portion into which a card is inserted; 
 a cover that is provided with a flat surface, covering the concave portion of the housing; 
 a slider of a trough shape that is disposed at one wing of the concave portion of the housing and is allowed to move only back and forth substantially in parallel with an insertion direction of the card; 
 a rotating cam member that is rotatable while being retained in the slider and slightly moving in an axial direction; and 
 a biasing means for biasing the rotating cam member in a direction that the card is ejected with a force, wherein: 
 the housing includes a first linear groove and a second linear groove that guide a first projection and a second projection that are disposed so as to face each other along a longitudinal direction of the slider, 
 the slider includes a tab piece that protrudes in a direction substantially perpendicular to the longitudinal direction of the slider and can be abutted by an end edge of the card, 
 the rotating cam member includes: 
 a plurality of protrusions that protrudes radially to an outer circumference of a cylindrical shaft portion, and have first broad protrusions and second narrow protrusions alternately; 
 a plurality of ratchet shaped first chevron teeth that is provided at one end of the shaft portion and protrudes in an axial direction; and 
 an edge face that is provided at the other end of the shaft portion and is abutted by one end of the biasing means, 
 the housing includes: 
 a minor arc groove that receives an outer circumference of the shaft portion; 
 a passage groove that communicates with the first linear groove that guides the first projection so that only one of the second protrusion can pass therethrough; and 
 a pair of first inclined surfaces that is formed in both sides of a starting edge of the passage groove at predetermined angles so that a plane including a central axis of the rotating cam member intersects a plane of each of the first inclined surfaces at the same angle, and 
 the slider includes: 
 a bearing portion that is open in an outer circumferential direction and retains an outer circumference of the shaft portion; and 
 a plurality of ratchet shaped second chevron teeth that engages with the first chevron teeth so as to rotate the rotating cam member intermittently in a single direction, 
 the first protrusion and the second protrusion have, in a direction in which the first chevron teeth protrude, a second inclined surface that abuts a pair of the first inclined surfaces so as to rotate the rotating cam member intermittently in a single direction, and 
 the housing is mainly formed with a pair of molds facing both surfaces thereof. 
 
     
     
       2. A card connector comprising:
 a housing of a flat plate shape that is provided with a concave portion into which a card is inserted; 
 a cover that is provided with a flat surface, covering the concave portion of the housing; 
 a slider of a trough-shape that is disposed at one wing of the concave portion of the housing and is allowed to move only back and forth substantially in parallel with an insertion direction of the card; 
 a rotating cam member that is rotatable while being retained in the slider and slightly moving in an axial direction; and 
 a biasing means for biasing the rotating cam member in a direction that the card is ejected with a force, wherein: 
 the housing includes a linear groove that guides projections disposed along a longitudinal direction of the slider, 
 the slider includes a tab piece that protrudes in a direction substantially perpendicular to the longitudinal direction of the slider and can be abutted by an end edge of the card, 
 the rotating cam member includes: 
 a pair of protrusions that protrudes in an opposite direction than to an outer circumference of a shaft portion of cylindrical shape; 
 a plurality of ratchet shaped first chevron teeth that is provided at one end of the shaft portion and protrudes in an axial direction; and 
 an edge face that is provided at the other end of the shaft portion and is abutted by one end of the biasing means 
 the housing includes: 
 a minor arc groove that receives an outer circumference of the shaft portion; 
 an arc groove that shares a central axis with the minor arc groove so that only an outer circumference of the shaft portion excluding the pair of protrusions can pass therethrough; 
 a pair of first inclined surfaces that is formed in both sides of a starting end of the arc groove at predetermined angles so that a plane including the central axis intersects a plane of each of the first inclined surfaces at the same angle, and 
 the slider includes: 
 a bearing portion that is open in an outer circumferential direction and retains an outer circumference of the shaft portion; and 
 a plurality of ratchet shaped second chevron teeth that engages with the first chevron teeth so as to rotate the rotating cam member intermittently in a single direction, 
 the protrusion has, in a direction that the first chevron teeth protrudes, a second inclined surface that abuts a pair of the first inclined surfaces so as to rotate the rotating cam member intermittently in a single direction, and 
 the housing is mainly formed with a pair of molds facing both surfaces thereof.